These interactive lessons use dynamic graphing and guided discovery to strengthen and connect
symbolic and visual reasoning. They give the student a hands-on visual exposition of all
Common Core Algebra 1 topics, reinforced by adaptive exercises and randomly generated tests. All
exercises and tests are checked and graded automatically. Hover the mouse over a link below to
see an example from that lesson, or click on a test link to see a concise
summary of a group of lessons. Relevant standards are listed
after each lesson’s exercises, with a ' (prime) denoting a distinct link. We also provide
a course glossary.

The Common Core and other standards cover many algebraic topics before the first actual High
School Algebra course. Therefore, students may have already completed many of the lessons and
exercises below in an earlier grade, or in a summer
preparatory course. If so, those assignments will be treated as already completed in this
course also.

Students should have scratch paper available, access to (software or hardware) numeric
calculators except during the Arithmetic Review chapter, and other students or a teacher to ask
for help when they are stuck. All students are encouraged to both give and receive
mathematical explanations with their peers. Please
send us your comments, questions and suggestions.